Just read that NASA is issuing a 1.5 million dollar prize for a solar powered Rover that can operate for 2 weeks in darkness. Should be a piece of cake compared to some of the other contests. All you need is solar panels for daylight and stellar panels for night.

And heating. Don't forget that you have to keep your rover warm enough for the electronics to keep working throughout the two-week night.

_________________Say, can you feel the thunder in the air? Just like the moment ’fore it hits – then it’s everywhereWhat is this spell we’re under, do you care? The might to rise above it is now within your sphereMachinae Supremacy – Sid Icarus